Expression and hormonal regulation of IL-11Ralpha in canine uterus during early pregnancy.
Reprod Domest Anim
; 44(5): 779-82, 2009 Oct.
Article
in En
| MEDLINE
| ID: mdl-18992081
Embryo implantation is critical for the successful establishment of pregnancy. Interleukin-11 (IL-11) is essential for adequate decidualization in the mouse and human via binding to the specific IL-11 receptor alpha (IL-11Ralpha). But the expression and regulation of IL-11 and IL-11Ralpha in the canine endometrium remain unknown. The aim of this study was to investigate the differential expression of IL-11Ralpha in canine uterus during early pregnancy and its regulation under different conditions by in situ hybridization. Interleukin-11Ralpha mRNA was mainly localized in glandular epithelium in canine uterus. There was a low level of IL-11Ralpha expression in the glandular epithelium on days 6, 12 and 17 of pregnancy. On day 20 of pregnancy when embryo implanted, IL-11Ralpha mRNA was highly expressed in the glandular epithelium surrounding the embryo, but not in the luminal epithelium and stroma. On day 23 of pregnancy, the expression of IL-11Ralpha mRNA maintained a constant level compared with the expression of day 20 and increased on day 28 of pregnancy. During the oestrous cycle, a high level of IL-11Ralpha mRNA expression was seen in the oestrous uterus. Progesterone slightly induced the expression of IL-11Ralpha mRNA in the ovariectomized canine uterus. These results suggest that IL-11Ralpha expression is closely related to canine implantation and up-regulated by progesterone.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Progesterone
/
Uterus
/
Gene Expression Regulation
/
Dogs
/
Interleukin-11 Receptor alpha Subunit
Limits:
Animals
/
Pregnancy
Language:
En
Journal:
Reprod Domest Anim
Year:
2009
Document type:
Article